Home / 20,255.72-27,987.14-14,579.24

Finding the Fourth Proportional to 20,255.72, 27,987.14 and 14,579.24

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Solution

The fourth proportional to 20,255.72, 27,987.14 and 14,579.24 is: 20,144.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.72 : 27,987.14 = 14,579.24 : x
  2. Step 2: Convert to fraction form
    20,255.72/27,987.14 = 14,579.24/x
  3. Step 3: Cross multiply
    20,255.72x = 27,987.14 × 14,579.24
  4. Step 4: Simplify right side
    20,255.72x = 408,031,127.49
  5. Step 5: Solve for x
    x = 408,031,127.49/20,255.72
  6. Step 6: Final answer
    x = 20,144.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.